// JavaScript Document
window.onload=function(){
	jddhShow(); //导航栏下拉信息
	head_show();	
} 

function collect(obj){
	var obj=document.getElementById("collect");
	obj.style.backgroundPosition='0 -317px';
}
function zan(obj){
	var obj=document.getElementById("zan");
	obj.style.backgroundPosition='0 -190px';
}
	
	







